Telephone system



July R. F. STEHLIKQ 2,289,939

TELEPHONE SYSTEM Filed Dec. 18, 1959 19 Sheets-Sheet 1 IXXLIXHIKRIIINVENTO ATTORNEY R RUDOLP RA K s EHLI y R. F. STE HLIK 2,289,939

TELEPHONE SYSTEM Filed Dec. 18, 1959 19 Sheets-Sheet 2 INVENTOR RUDOLPHFRANK STEHLIK ATTORNEY July 14, 1942.

R. F: STEHLIK 2,289,939

TELEPHONE SYSTEM v Filed- Dec. 18, 1939 19 Sheets-Sheet 3 INVENTORRUDOLPH FRANK STEHL K AT TOR July 14, 1942.

R. F. STEHLIK 2,289,939

TELEPHONE SYSTEM Filed Dec 18, 1939 19 Sheets-Sheet 4 INVENTOR RUDOLPHFRANK STEHLIK zz' ATTORNEY July 14, 1942.

R. F. STEHLIK 2,289,939 TELEPHONE SYSTEM Filed Dec. 18, 1939 19Sheets-Sheet 5 INVENTOR RUDOLPH FRANK STE HLIK ATTOR y 1942. R. F.STEHLIK 2,289,939

TELEPHONE SYSTEM Filed Dec. 18, 1939 19 Sheets-Sheet 6 INVENTOR RUDOLPHFRANK ST EHLIK BY C a ;Z. 4.4

ATTORNEY y 1942. R. F. STEHLIK 2,289,939

TELEPHONE SYSTEM Filed M18, 1939 19 Sheets-Sheet 7 .INVENTOR I RUDOLPHFRANK STEHLIK ATTORNEY f July 14, 194 R.) F. STEHLIK 2,289,939

TELEPHONE SYSTEM Filed Dec. 18, 1959 19 Sheets-Sheet s INVENTOR RUDOLPHFRANK STEHLIK ATTOR y 1942- R. F. STEHLIK 2,289,939

TELEPHONE SYSTEM Filed Dec.- 18, 1939 19 Sheets-Sheet 9 I/5 .9

INVENTOR RUDOLPH FRANK STEHLIK ATTORNEY July 14, 1942. R. F. STEHLIK2,239,939

TELEPHONE SYSTEM F1196. D80. 18, 1939 19 Sheets-Sheet 10 2/5410. m5 wasman 1m m mo F 1541 INVENTOR RUDOLPH FRANK STEHLIK.

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TELEPHONE SYSTEM Filed Dec. 18, 1939 19 Sheets-Sheet 11 INVENTOR RUDOLPHFRANK STEHLIK ATTORNEY July 14, 1942.

R. F. .STEHLIK 2,289,939

. TELEPHONE SYSTEM Filed Dec. 18; 1939 19 Sheets-Sheet 12 INVENTORRUDOLPH FRANK STEHLIK ATTORNEY y 1942; R. F. STEHLIK l 2,289,939

TELEPHONE SYSTEM Filed Dec. 18, 1939 19'Sheets-Sheet 13 445.5% marl-Ivafg ATTORNEY July 14, 1942.

R. F. STEHLIK TELEPHONE SYSTEM Filed D60. 18, 1939 19 Sheets-Sheet 14INVEN TOR RUDOLPH FRANK STEHLIK AT TORNE Y y 2- IR. F. STEHLIK 2,289,939

TELEPHONE SYSTEM Filed Dec. 18, 1939 19 Sheets-Sheet 15 ATTORNEY y 1942-R. F. STEHLIK 2,289,939

TELEPHONE SYSTEM Filed Dec. 18, 19:59 19 Sheets-Sheet 1s A I 175; 16I669; I. I

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ATTORNEY July 14, 1942. R; F. STEHLIK TELEPHONE SYSTEM Filed Dec. 18,1939 19 Sheets-Sheet l7 4606 1607 was 0g m ,asss 942 @647 465a v vINVENTOR RUDOLPH FRANK STEHLIK ATTORNEY y 1942. R. F.- STEHLIK 2,289,939

IELEPHONE SYSTEM Filed Dec. 18, 1939 19 Sheets-Sheet 18 INVENTOR RUDOLPHFRANK STEHLIK AT TOR NEY July 14, 1942. R. F. STEHLIK TELEP H ONE SYSTEMFiled Dec. 18, 1939 19 Sheets-Sheet l9 6 J m G w H H 6 m ru w 4. H M Q mH F m 7 H I. ru 2 M m H 1. F F ru H I m G J F H m rr 5 m G G H H m FINVENTOR RUD OLPH FRANK STEHL|K ATTORNEY Patented July 14, 1942TELEPHONE! SYSTEM Rudolph Frank Stehlik, Antwerp, Belgium, as-

signor to Associated Telephone & Telegraph Company, Chicago, Ill., acorporation of Delaware Application December 18, 1939, Serial No.311,051 In Great Britain January 19, 1939 12 Claims.

The present invention relates to telephone systems and is moreparticularly concerned with systems provided with facilities forautomatically printing information relating to a call.

In the arrangements so far proposed the iden- --tification of thesubscribers whose particulars are recorded have been made according to anumerical code, and while there is no difficulty as regards the callingsubscribers number it is not clear that the numerical code for theexchange or for the zone and exchange will be readily identifiable bythe subscriber and an object of the present invention is to print thewanted subscribers exchange at least in a form which will enable readyidentification to be made.

The object of the present invention is to provide arrangements whereby acertain number of letters of the exchange or zone name are printed inplace of or in addition to the numerical code for such exchange or zone.

According to one feature of the invention, therefore, a translatingarrangement is provided which in response to numerical digitsrepresenting a zone or exchange exerts a control corresponding to anumber of letters of the exchange or zone name to cause the printer toprint such letters in place of said numerical digits,

According to a further feature of the invention, a switching deviceadapted to be set to a number of positions, each representing adifferent exchange or zone causes a printer to print the name or part ofthe name of the exchange or zone corresponding to the position to whichthe switching device is set.

According to another feature of the invention, the various items ofinformation are transmitted in the form of coded impulses to a storagedevice which includes an arrangement for decoding the received impulsesand a switching device comprising at least one two-directional switchwhich is set in accordance with the numerical designation of theexchange or zone of the wanted party and serves to control the operationof a printing device to print a number of letters representing theexchange or zone name.

The invention will be better understood from the following descriptiontaken in conjunction with the accompanying drawings which show onemethod of carrying the invention into effect.

These drawings comprise Figs. 1-21, inclusive, and the Figs. 1-16 and19-21 are similar to Figs. 40-56, 14, and 58 respectively intheapplication of John Ellis Ostline, Serial No. 278,728, filed June 12,1939. Furthermore, Figs. 1-16, 19 and 21 are similar to Figs. 15-31 and33, respectively, in the application of John Ellis Ostline, Serial No.278,729, filed June 12, 1939. The circuits and apparatus contained inthe present application have been designated in the same manner as thecorresponding equipment in the above-mentioned applications. For adetailed description of the complete system including those figures ofthe above applications not shown in the drawings of the instantapplication, reference may be had to the said prior applications inwhich the present drawings may be substituted for the drawings of saidapplications to which they are above referred as being similar.

More specifically Fig. 20 shows the code employed for transmitting thevarious items of information. Figs. 1-16 show the circuits of theprinter controller and printer as disclosed in the above mentionedapplications, suitably amended to interwork with the translating deviceshown in Figs. 17 and 18 which is necessary in order to print on theticket the first three or four letters of the exchange or zonedesignation. These figures should be arranged as shown on Fig. 21.Finally Fig, 20 shows a ticket printed with the particulars of a call.

A detailed description will, however, not be given of the whole of thecircuits disclosed in these figures since such a detailed description isgiven in the above mentioned applications. In the present specificationa detailed description of the circuit operations will only be given inso far as they are different from those disclosed in the previousapplications but a brief description will be given of the generaloperation of the whole circuit.

The printer controller is taken into use on the termination of aconnection over a toll line control circuit. The toll line controlcircuit has stored in it the following information.

1. The calling partys number.

2. The called partys number.

3, The rate at which the call is to be charged.

4.'The duration of the call.

5. A special indication if the calling subscriber wishes to be informedat the end of the connection of the total cost of the call.

This information is stored in code in the toll line control circuit andon the seizure of the printer controller is transferred together withthe time of day and day of the month to groups of storage relaystherein. This transfer is effected over the wipers ISM-435i of theswitch IP2 (Fig. 1). These wipers have their corresponding bank contactseach connected to one relay of a group of four storage relays. Thuscontact I of wiper I348 is connected to relay 13!!! of storage groupXXI; contact I of wiper I349 is connected to relay I329 of storage groupXXI and so on. Of these storage groups )QKI, XXII, XXIII, 1, VI, VII,and XIII are shown in full, the remainder being omitted in order notunduly to complicate the drawings.

The first item of information to be transferred is the rate at which thecall is to be chargedand this is stored on group XXI. The duration of

